Kenta Niwa
Kenta Niwa
NTT Media Intelligence Laboratories
Verified email at lab.ntt.co.jp
TitleCited byYear
Estimating direct-to-reverberant energy ratio using D/R spatial correlation matrix model
Y Hioka, K Niwa, S Sakauchi, K Furuya, Y Haneda
IEEE Transactions on Audio, Speech, and Language Processing 19 (8), 2374-2384, 2011
582011
Underdetermined sound source separation using power spectrum density estimated by combination of directivity gain
Y Hioka, K Furuya, K Kobayashi, K Niwa, Y Haneda
IEEE Transactions on Audio, Speech, and Language Processing 21 (6), 1240-1250, 2013
532013
Sound enhancement method, device, program and recording medium
K Niwa, S Sakauchi, K Furuya, Y Haneda
US Patent 9,191,738, 2015
322015
Post-filter design for speech enhancement in various noisy environments
K Niwa, Y Hioka, K Kobayashi
2014 14th International Workshop on Acoustic Signal Enhancement (IWAENC), 35-39, 2014
312014
Encoding large array signals into a 3D sound field representation for selective listening point audio based on blind source separation
K Niwa, T Nishino, K Takeda
2008 IEEE International Conference on Acoustics, Speech and Signal …, 2008
302008
DNN-based source enhancement self-optimized by reinforcement learning using sound quality measurements
Y Koizumi, K Niwa, Y Hioka, K Kobayashi, Y Haneda
2017 IEEE International Conference on Acoustics, Speech and Signal …, 2017
222017
Pinpoint extraction of distant sound source based on DNN mapping from multiple beamforming outputs to prior SNR
K Niwa, Y Koizumi, T Kawase, K Kobayashi, Y Hioka
2016 IEEE International Conference on Acoustics, Speech and Signal …, 2016
202016
3DAV integrated system featuring arbitrary listening-point and viewpoint generation
MP Tehrani, K Niwa, N Fukushima, Y Hirano, T Fujii, M Tanimoto, ...
2008 IEEE 10th Workshop on Multimedia Signal Processing, 855-860, 2008
202008
Diffused sensing for sharp directive beamforming
K Niwa, Y Hioka, K Furuya, Y Haneda
IEEE Transactions on Audio, Speech, and Language Processing 21 (11), 2346-2355, 2013
162013
Dnn-based source enhancement to increase objective sound quality assessment score
Y Koizumi, K Niwa, Y Hioka, K Kobayashi, Y Haneda
IEEE/ACM Transactions on Audio, Speech, and Language Processing 26 (10 …, 2018
132018
Estimation of direct-to-reverberation energy ratio based on isotropic and homogeneous propagation model
Y Hioka, K Furuya, K Niwa, Y Haneda
IWAENC 2012; International Workshop on Acoustic Signal Enhancement, 1-4, 2012
122012
Estimating direct-to-reverberant energy ratio based on spatial correlation model segregating direct sound and reverberation
Y Hioka, K Niwa, S Sakauchi, K Furuya, Y Haneda
2010 IEEE International Conference on Acoustics, Speech and Signal …, 2010
122010
Optimal microphone array observation for clear recording of distant sound sources
K Niwa, Y Hioka, K Kobayashi
IEEE/ACM Transactions on Audio, Speech, and Language Processing 24 (10 …, 2016
112016
PSD estimation in beamspace for estimating direct-to-reverberant ratio from a reverberant speech signal
Y Hioka, K Niwa
arXiv preprint arXiv:1510.08963, 2015
112015
Application of neural network to source PSD estimation for Wiener filter based array sound source enhancement
T Kawase, K Niwa, K Kobayashi, Y Hioka
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC), 1-5, 2016
92016
Estimation of sound source orientation using eigenspace of spatial correlation matrix
K Niwa, Y Hioka, S Sakauchi, K Furuya, Y Haneda
2010 IEEE International Conference on Acoustics, Speech and Signal …, 2010
92010
Software defined media: Virtualization of audio-visual services
M Tsukada, K Ogawa, M Ikeda, T Sone, K Niwa, S Saito, T Kasuya, ...
2017 IEEE International Conference on Communications (ICC), 1-7, 2017
82017
PSD estimation in beamspace using property of m-matrix
K Niwa, T Kawase, K Kobayashi, Y Hioka
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC), 1-5, 2016
82016
Dive into remote events: omnidirectional video streaming with acoustic immersion
D Ochi, K Niwa, A Kameda, Y Kunita, A Kojima
Proceedings of the 23rd ACM international conference on Multimedia, 737-738, 2015
82015
Development of selectable viewpoint and listening point system for musical performance
K Niwa, T Nishino, K Takeda
82007
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Articles 1–20